BrewDog co-founder Martin Dickie has revealed he originally wanted to create an eco-brewery in 2012.
The business bought land near Aberdeen Airport, but he and chief executive James Watt realised the cost of powering and getting water to the site was too much, so had to look elsewhere and eventually found the plot near Ellon that now houses its headquarters.
He said: “We found a great site at the outskirts of Aberdeen airport - a seven acre site - we were able to get it at a great price, as my uncle was a farmer there and sold us a field at agricultural rates.